Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Noise reducer for rotor blade in wind turbine

a technology of rotor blade and reducer, which is applied in the direction of liquid fuel engines, vessel construction, marine propulsion, etc., can solve the problems of insufficient reduction of noise associated with typical rotor blades, inability to adequately reduce noise associated with rotor blades, and constant stiffness,

Active Publication Date: 2011-07-12
LM WIND POWER US TECH APS
View PDF28 Cites 49 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a rotor blade assembly for a wind turbine that includes a noise reducer. The noise reducer has reinforcing members and noise reduction features that are connected to the reinforcing members. The reinforcing members cause the noise reduction features to have a variable stiffness throughout. The technical effect of this invention is to reduce noise levels during operation of the wind turbine.

Problems solved by technology

However, typical prior art noise reducers have a variety of disadvantages, and may not adequately reduce the noise associated with typical rotor blades.
This constant stiffness may not allow the serration to adequately flex in response to wind flow over the noise reducer.
Thus, the noise reduction characteristics of these prior art noise reducers may be impeded.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Noise reducer for rotor blade in wind turbine
  • Noise reducer for rotor blade in wind turbine
  • Noise reducer for rotor blade in wind turbine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020]Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.

[0021]FIG. 1 illustrates a wind turbine 10 of conventional construction. The wind turbine 10 includes a tower 12 with a nacelle 14 mounted thereon. A plurality of rotor blades 16 are mounted to a rotor hub 18, which is in turn connected to a main flange tha...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A rotor blade assembly for a wind turbine is disclosed. The rotor blade assembly includes a rotor blade having surfaces defining a pressure side, a suction side, a leading edge, and a trailing edge extending between a tip and a root. The rotor blade assembly further includes a noise reducer configured on a surface of the rotor blade. The noise reducer includes a plurality of reinforcing members and a plurality of noise reduction features. Each of the plurality of reinforcing members extends outwardly with respect to the rotor blade. Each of the plurality of noise reduction features is connected to one of the plurality of reinforcing members and defines a width. Each of the plurality of reinforcing members causes the connected noise reduction feature to have a variable stiffness throughout at least a portion of the width of the connected noise reduction feature.

Description

FIELD OF THE INVENTION[0001]The present disclosure relates in general to wind turbine rotor blades, and more particularly to noise reducers configured on the rotor blades.BACKGROUND OF THE INVENTION[0002]Wind power is considered one of the cleanest, most environmentally friendly energy sources presently available, and wind turbines have gained increased attention in this regard. A modern wind turbine typically includes a tower, generator, gearbox, nacelle, and one or more rotor blades. The rotor blades capture kinetic energy of wind using known foil principles. The rotor blades transmit the kinetic energy in the form of rotational energy so as to turn a shaft coupling the rotor blades to a gearbox, or if a gearbox is not used, directly to the generator. The generator then converts the mechanical energy to electrical energy that may be deployed to a utility grid.[0003]In many cases, various components are attached to the rotor blades of wind turbines to perform various functions duri...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(United States)
IPC IPC(8): F03D3/06
CPCF03D1/0633F03D1/065Y02E10/721F05B2260/96F05B2240/30F05B2250/183Y02E10/72
Inventor HUCK, ROBERT KARL
Owner LM WIND POWER US TECH APS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com